Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
Journal of Porous Media
IF: 1.061 5-Year IF: 1.151 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Print: 1091-028X
ISSN Online: 1934-0508

Volumes:
Volume 22, 2019 Volume 21, 2018 Volume 20, 2017 Volume 19, 2016 Volume 18, 2015 Volume 17, 2014 Volume 16, 2013 Volume 15, 2012 Volume 14, 2011 Volume 13, 2010 Volume 12, 2009 Volume 11, 2008 Volume 10, 2007 Volume 9, 2006 Volume 8, 2005 Volume 7, 2004 Volume 6, 2003 Volume 5, 2002 Volume 4, 2001 Volume 3, 2000 Volume 2, 1999 Volume 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v19.i2.30
pages 131-153

TRANSPIRATION COOLING WITH LOCAL THERMAL NONEQUILIBRIUM: MODEL COMPARISON IN MULTIPHASE FLOW IN POROUS MEDIA

Franz Lindner
Department of Aerospace Engineering, Institute for Thermodynamics, University of the Federal Armed Forces Munich, 85577 Neubiberg, Germany
Philipp Nuske
Department of Hydromechanics and Modelling of Hydrosystems, University of Stuttgart, 70569 Stuttgart, Germany
Kilian Weishaupt
Department of Hydromechanics and Modelling of Hydrosystems, University of Stuttgart, 70569 Stuttgart, Germany
Rainer Helmig
Department of Hydromechanics and Modelling of Hydrosystems, University of Stuttgart, 70569 Stuttgart, Germany
Christian Mundt
Department of Aerospace Engineering, Institute for Thermodynamics, University of the Federal Armed Forces Munich, 85577 Neubiberg, Germany
Michael Pfitzner
Department of Aerospace Engineering, Institute for Thermodynamics, University of the Federal Armed Forces Munich, 85577 Neubiberg, Germany

ABSTRACT

This article investigates the evaporation process in porous media during transpiration cooling. This means that a strong heat source fully evaporates a high liquid flux, leading to complex flow situations. This multiphase flow with phase change setting is simulated with two different models, implemented in MATLAB and DuMu, a free and open source simulator, respectively. These models use different mathematical and numerical schemes but are able to simulate local thermal nonequilibrium. For a sample 1D case, the models are tested against one another and compared to results from the literature. Considerable differences to the published results are found, but the two models in this work show almost the same behavior, without any calibration employed.


Articles with similar content:

Experimental Study of Non-Fourier Thermal Response in Porous Media
Journal of Porous Media, Vol.8, 2005, issue 1
A Haji-Sheikh, A. G. Agwu Nnanna, K. T. Harris
NUMERICAL SIMULATION OF THE EFFECT OF CONTACT ANGLE ON THE THERMAL RESPONSE OF THE SOLID DURING NUCLEATE POOL BOILING
Interfacial Phenomena and Heat Transfer, Vol.2, 2014, issue 4
Eduardo Aktinol, Vijay K. Dhir
A Numerical Investigation of the Effects of Compositional and Thermal Buoyancy on Transient Plumes in a Porous Layer
Journal of Porous Media, Vol.10, 2007, issue 2
J. E. Milne, S. L. Butler
DEVELOPMENT OF A NEW MODEL AND HEAT TRANSFER ANALYSIS OF IMPINGING DIESEL SPRAYS ON A WALL
Atomization and Sprays, Vol.11, 2001, issue 1
Hong Sun Ryou, Seong Hyuk Lee
Different Approaches to FVM Method Fluid Flow and Heat Transfer Simulation Inside Thermosyphon
International Heat Transfer Conference 15, Vol.10, 2014, issue
Grzegorz Gorecki, Marcin Lecki